[ELF][test] Improve non-abs-reloc.s to test non-STT_SECTION local symbol

Author: MaskRay

lld/test/ELF/non-abs-reloc.s

@@ -3,15 +3,16 @@
 // RUN: llvm-mc -filetype=obj -triple=i386 --defsym X86_32=1 asm -o a.o
 // RUN: ld.lld -T lds a.o -o a 2>&1 | FileCheck %s --implicit-check-not=warning:
 // CHECK:      warning: {{.*}}.o:(.nonalloc1+0x1): has non-ABS relocation R_386_PC32 against symbol '_start'
-// CHECK-NEXT: warning: {{.*}}.o:(.nonalloc1+0x6): has non-ABS relocation R_386_PC32 against symbol '_start'
+// CHECK-NEXT: warning: {{.*}}.o:(.nonalloc1+0x6): has non-ABS relocation R_386_PC32 against symbol 'ifunc'
+// CHECK-NEXT: warning: {{.*}}.o:(.nonalloc1+0xa): has non-ABS relocation R_386_PC32 against symbol ''
 
 // RUN: llvm-objdump -D --no-show-raw-insn a | FileCheck --check-prefix=DISASM %s
 // DISASM:      Disassembly of section .nonalloc:
 // DISASM-EMPTY:
 // DISASM-NEXT: <.nonalloc>:
 // DISASM-NEXT:   0: nop
 // DISASM-NEXT:   1: call{{.}} 0x0
-// DISASM-NEXT:   6: call{{.}} 0x0
+// DISASM-NEXT:   6: call{{.}} 0x5
 
 /// There is currently no error for -r. See also https://github.com/ClangBuiltLinux/linux/issues/1937
 // RUN: ld.lld -T lds -r a.o -o /dev/null --fatal-warnings
@@ -21,7 +22,8 @@
 // RUN: llvm-objdump -D --no-show-raw-insn b | FileCheck --check-prefix=DISASM %s
 // RUN: ld.lld -T lds -r b.o -o /dev/null --fatal-warnings
 // CHECK2:      warning: {{.*}}.o:(.nonalloc1+0x1): has non-ABS relocation R_X86_64_PC32 against symbol '_start'
-// CHECK2-NEXT: warning: {{.*}}.o:(.nonalloc1+0x6): has non-ABS relocation R_X86_64_PC32 against symbol '_start'
+// CHECK2-NEXT: warning: {{.*}}.o:(.nonalloc1+0x6): has non-ABS relocation R_X86_64_PC32 against symbol 'ifunc'
+// CHECK2-NEXT: warning: {{.*}}.o:(.nonalloc1+0xa): has non-ABS relocation R_X86_64_PC32 against symbol ''
 
 //--- lds
 SECTIONS {
@@ -33,14 +35,19 @@ _start:
 .L0:
   nop
 
+resolver: ret
+.type ifunc, @gnu_indirect_function
+.set ifunc, resolver
+
 .section .nonalloc0
   nop
 
 .section .nonalloc1
   .byte 0xe8
   .long _start - . - 4
   .byte 0xe8
-  .long _start - . - 4
+  .long ifunc - .
+  .long .nonalloc0 - .
 
 // GCC may relocate DW_AT_GNU_call_site_value with R_386_GOTOFF.
 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98946